Frederick w



(NoModeL) F. W.-HEDGELAND.

WIND MOTOR.

No..591,218. Pat en'ted Oct. 5,1897.

ms A rro/wvs m did a umen wAsnmuTon u c llwrrnn STATES PATENT @rrrcn.

FREDERICK W. HEDGELAIND, or CHICAGO, ILLINOIS, Assrenon To THE W. W.KIMBALL COMPANY, or SAME PLACE.

WIND-MOTOR.

SPECIFICATION forming part of Letters Patent No. 591,21 8, dated October5, 1897. Applicatitn filed May 10,1897. Seria1No.635,852. (NomodeL) Toall whom it may oncern:

Be it known that I, FREDERICK W. HEDGE- LAND, a citizen of the UnitedStates, residing in Chicago, in the county 'of Cook and State ofIllinois, have invented a newanduseful Improvement in YVind-Motors, ofwhich the following is a specification.

This invention relates to improvements in wind-motors. It has beendevised more especially for use in operating the tremolos andmusic-sheets of organs; and its leadingobject is the obviating of thefriction present in previous constructions.

The nature of the improvement is fully set forth below and isillustrated in the accompanying drawings, in which- Figure 1 is a sideand'Fig 2 is an end elevation of the invention. Fig. 3 is a longitudinalsection; and Fig. 4, a transverse sect-ion, the latter upon the line 4 4of-Fig. 3.

In said drawings, A represents a box, chest, or trunk divided interiorlyby the partition A into two chambers A and A I The former of thesechambers communicates" with the air by the opening A, which isconstantly open, and the latter is constantly exhausted of air by thebellows or other wind-producing devices, being connected therewith byone or more ducts A The trunk is preferably three-sided, and thepneumatics B are placed one at each side. well as the number ofpneumatics may be varied, however. The movable sides of the severalpneumatics are each connectedto a crank-pin 0 upon the pulley O by meansof the links D and arms I), so that by successively inflating anddeflating the pneumatics they will actuate said pulley, andv therebycreate power in the latter which may be trans ferred to the shaft, whichis to be driven by any suitable belt. The pneumatics are supplied withthe air necessary for inflation from the chamber A by means of passagesE, of

which there is one leading from each pneu- 1natic,and each of suchpassages also connects with'chamber A so that the deflation may takeplace into that chamber. These movements of the air are controlled byvalves The number of sides as.

ing those chambers with said passage E. Each pair of the valves F and Gris connected by means of their stem with a membrane-motor H, located inthe wall of chamber A and having an air-passage H in its rear,communicating both with the outer air by duct H and with chambe'r'A byports guarded by valves H and Hflmounted upon a common stem H andadapted to open and also to close the ports alternately. These lattervalves are operated automatically by their corresponding pneumatics atthe close of each expansion, and also at the close of each collapse ofthe pneumatic by means of a lever J, located in the pneumatic, as shown,and rocking upon a pivot J ,the lever being positively attached at oneend to the stem of the valves and receiving power at its other end fromthe moving side of the pneumatic through the medium of a tension deviceK, secured in said moving side and passing freely through the lever witha button below the same, so that it will pull upon the lever just beforethe conclusion of the expanding movement of the pneumatic, and a stop Kis also carried by said moving side and adapted to depress the lever asthe moving side nears its completelyexhausted position. Both the devicesK and K may be adjustable, so they may be regulated as to the timeoftheir action and the extent of movement imparted by them.

In the position shown at Fig. 3 the lower pneumatic is shown as fullyexpanded and the valvesF G as shifted ready to permit deflating, thevalve II being also open and valve H closed, so that the motor-passage Hmay also be exhausted. The main valves F G are moved to this position bythe suction power existing in chamber Aiacting upon valve G, themembrane-motor b'eing neutralized at the time by the fact that likeconditions prevail upon both sides of it, and the valves H and II havebeen shifted to the location shown by the lever J when last actuated bythe connection K. Deflation now ensues and collapses the pneumatic andre verses the lever J by means of stop K, and in so doing the valves Hand H4 are also reversed, so that the air flows through duct H intopassage H and inflates motor H, causing such pressure on the latter aswill shift its moving side again carries lever J to the position in saidfigure. This closes valve H, opens valve H allows the exhaust to drawair from behind membrane H, so as to neutralize said membrane, and thesuction then shifts valves F and G back to the position illustrated.

One great advantage of my invention is that it has so few points atwhich friction exists, and to still further decrease the friction 1provide the belt-pulley O with a ball-bearing, the supporting stud orpivot C being grooved, as shown, so as to form two oppositefaced cones,and the interior of the pulley being provided with cups 0 at oppositesides. The balls C are by this construction confined at both sides, anda bearing is formed which is not only very durable and requires nolubricating, but is also noiseless.

My invent-ion is in no wise dependent upon the number of sides or thenumber of pneumatics, nor upon the arrangement of the pneumatics aroundthe chamber or trunk, nor to the use of a pulley mounted upon a studinstead of long shaft, nor to the connecting of the pneumatics directlytojthe driven pulley.

I claim- 1. The combination in a pneumatic-motor, of a series ofpneumatics, a series of valves corresponding to the pneumatics andacting to control the inflating and deflating thereof, and means wherebyeach pneumatic, independently of the other pneumatics, is enabled tocontrol its own valves, substantially as specified.

2. The combination in a pneumatic-motor, of a series of pneumatics, aseries of valves corresponding to the pneumatics and acting to controlthe inflating and deflating thereof, and a separate motor device in thecase of each pneumatic for operating said valves,

such motor device being under the independent control of the movableside of the corresponding pneumatic, substantially as specified.

3. The pneumatic-motor, wherein are combined a series of pneumatics B,and their controlling-valves, each pneumatic being provided with meanswhereby it may, independently of all the other pneumatics, control itsown valves, substantially as specified.

4. The combination with a pulley or other rotating device, of awind-motor for driving the same, said motor containing a series ofpneumatics, valves controlling said pneumatics, and means whereby eachpneumatic may, independently of the other pneumatics, operate its ownvalves, substantially as specified.

5. The combination in a pneumatic-motor, of a series of power-pneumaticsB, a windchamber, valves controlling the passages between the chamberand the pneumatics, a separate lever for each pneumatic actuated by themoving side thereof,and devices whereby each of said levers controls thevalves of its own pneumatic, substantially as specified.

6. The wind-motor, consisting of a series of pneumatics arranged arounda wind-chest, valves for each pneumatic controlling the inflating anddeflating thereof, a membranemotor for shifting the valves of eachpneumatic, and a lever adjacent to and actuated by the moving side ofeach pneumatic, and serving to cause the operation of the membrane-motorof the same pneumatic, substantially as specified.

7. The pneumatic-motor, consistin'gof a series of pneumatics, eachprovided with separate valves, and each having its movable sideconnected to and controlling its own valves by means of connectionsindependent of the other pneumatics, substantially as specified.

FREDERICK W. HEDGELAND.

Witnesses:

H. M. MUNDAY, EDW. S. EVARTS.

